How can I know if a guy likes me if he has a girlfriend?

how do you know if a guy likes you?

I like these guys and I dont know what to do

The guy I like got a girlfriend today. What should I do?

Sometimes we play & like touch each other in a playful way but he has a girlfriend

how do you know if a guy really likes you or is messing with your head?

I like this guy, and we are friends, but he's dating my best friend, and she only dating him because she knows that I like hi...

How do I know if a guy I barely met likes me??

I like this guy at my school and I dont know if he likes me how do I now what do I say?

I have a major crush and he keeps leading me on then saying he doesn't like me like that, what should I do ?

there's this guy that i really like.{dts} i think he likes me too, but sometimes he flirts and others he doesn't. how do i ge...